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介绍了热泵的低位热源及工质的替代等方面的研究进展 ,并对热泵的经济性进行了分析 ,提出了热泵装置在目前条件下要与油 (气 )锅炉相竞争所必须要达到的成本和效率曲线
The research progress of low heat source and working fluid substitution of heat pump is introduced. The economical efficiency of heat pump is analyzed. The cost of heat pump which must be competed with oil (gas) boiler under current conditions is put forward And efficiency curve